A Klamath Falls man has been arrested on 48 sex abuse charges, and more charges are expected. Yesterday, Oregon State Police detectives took 50-year-old Ronny Alan Rykbost into custody after a search warrant was served at his residence. Police found at least 12 separate visual recordings of children involved in sexually explicit conduct. One of the victims was related related to Rykbost and under the age of 12 at the time of the alleged crimes.